Maastricht, NETHERLANDS: Unidentified officials hold 07 February 2007 paper copies of the Maastricht Treaty that was signed 15 years ago. The anniversary will be celebrated all year round in the southern Dutch city in a commemoration called 'Maastricht celebrates Europe.' The Maastricht Treaty is a pact covering the creation of the eurozone which was signed in the Dutch city of Maastricht in 1992.